package cn.bestick.easyexam.common.util;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * Created by IntelliJ IDEA.
 * User: Bestick
 * Date: 4/28/16
 * Time: 23:37
 * Url: http://www.bestick.cn
 * Copyright © 2015-2016 Bestick All rights reserved
 * -----------------------------------------------------------
 * 会当凌绝顶，一览众山小。
 */
public class Page<T> {

    private int pageNo = 1;// 页码，默认是第一页

    private int pageSize = 10;// 每页显示的记录数，默认是10

    private int totalRecord;// 总记录数

    private int totalPage;// 总页数

    private boolean getAllRecord;// 是否获取所有记录

    private List<T> results;// 对应的当前页记录

    private Map<String, Object> params = new HashMap<>();// 其他的参数我们把它分装成一个Map对象

    public boolean isGetAllRecord() {
        return getAllRecord;
    }

    public void setGetAllRecord(boolean getAllRecord) {
        this.getAllRecord = getAllRecord;
    }

    public int getPageNo() {
        return pageNo;
    }

    public void setPageNo(int pageNo) {


        this.pageNo = pageNo;
    }

    public int getPageSize() {
        return pageSize;
    }

    public void setPageSize(int pageSize) {
        this.pageSize = pageSize;
    }

    public int getTotalRecord() {
        return totalRecord;
    }

    public void setTotalRecord(int totalRecord) {
        this.totalRecord = totalRecord;
        // 在设置总页数的时候计算出对应的总页数，在下面的三目运算中加法拥有更高的优先级，所以最后可以不加括号.


        int totalPage = totalRecord % pageSize == 0 ? totalRecord / pageSize
                : totalRecord / pageSize + 1;
        if (totalPage == 0)
            totalPage = 1;
        this.setTotalPage(totalPage);
        if (this.pageNo <= 0)
            this.setPageNo(1);
        if (this.pageNo > this.totalPage)
            this.pageNo = this.totalPage;
    }

    public int getTotalPage() {
        return totalPage;
    }

    public void setTotalPage(int totalPage) {
        this.totalPage = totalPage;
    }

    public List<T> getResults() {
        return results;
    }

    public void setResults(List<T> results) {
        this.results = results;
    }

    public Map<String, Object> getParams() {
        return params;
    }

    public void setParams(Map<String, Object> params) {
        this.params = params;
    }

    @Override
    public String toString() {
        StringBuilder builder = new StringBuilder();
        builder.append("Page [pageNo=").append(pageNo).append(", pageSize=")
                .append(pageSize).append(", results=").append(results)
                .append(", totalPage=").append(totalPage)
                .append(", totalRecord=").append(totalRecord).append("]");
        return builder.toString();
    }
}
